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3 years ago

14 1/5 - 5 5/6 as a fraction

Mathematics

2 answers:

melomori [17]3 years ago

4 0

Answer:

$\frac{251}{30}$ or 8 $\frac{11}{30}$

Step-by-step explanation:

nirvana33 [79]3 years ago

4 0

Answer:

8 11/30

Step-by-step explanation:

But all you have to do is just simplify you can use calculator soup to siplify I hope this helps.

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The cost C (in dollars) of building a house is related to the number k of carpenters used and the number e of electricians used

riadik2000 [5.3K]

$C = 15000 + 50k^2 + 60e^2 \Rightarrow \\
\frac{dC}{de} = \frac{d}{de} 50k^2 + \frac{d}{de} 60e^2 \Rightarrow \\
\frac{dC}{de} = 100k\frac{dk}{de} + 120e\\
Cost\ of\ house\ is\ fixed\ so\ \frac{dC}{de} = 0 \\
0 = 100k\frac{dk}{de} + 120e\ \Rightarrow\ -120e = 100k\frac{dk}{de} \ \Righarrow \\ \frac{dk}{de} = -\frac{6e}{5k} \\

$

find k when e = 15

$100000 = 15000 + 50k^2 + 60(15)^2 \Rightarrow k = \sqrt{1430}$

$\frac{dk}{de} = -\frac{6e}{5k} = -\frac{6(15)}{5\sqrt{1430}} = -0.476$

inst rate of carpenters with 15 <span>electricians:</span> decreasing at 0.476 carpenters per electrician

7 0

3 years ago

The equation Y-3=-2(x+5) is written in point-slope form. What is the y-intercept of the line?

Setler79 [48]

Y-3 = -2(x+5)

Rewrite in slope intercept form:

y-3 = -2(x+5)

Simplify the right side:

y-3 = -2x -10

Add 3 to both sides:

y = -2x -7

The y intercept is -7

3 0

3 years ago

Judy Ring purchased a watch with a retail price of $8,000. She still has to pay a sales tax of 6% and an excise tax of 10%. Sinc

Bumek [7]

The total purchase price of the watch is: $9,300

$8,000 + (0.06 × $8,000) + (0.10 × 8,000) + $20

$8,000 + $480 + $800 + $20

7 0

4 years ago

Read 2 more answers

Which value of x from the set {4, 5, 6, 7}, makes this equation true?

Phoenix [80]

4(8 - x) = 8

32 - 4x = 8

- 32

-4x = -24

x = 6

4 (8 - 6) = 8

8 - 6 = 2

4 * 2 = 8

8 = 8

5 0

3 years ago

Read 2 more answers

I need help please

wel

Answer:

Step-by-step explanation:

5 0

3 years ago